نقاش:حمل حراري

Convection cells are visible in the heated cooking oil in the pot at left. Heating the oil produces changes in the index of refraction of the oil, making the cell boundaries visible. Circulation patterns form, and presumably the wall-like structures visible are the boundaries between the circulation patterns ممكن حدا يشرحلي شو هي index of refraction و شو المقصود بخلايا الحمل و الدوران